METALLOTECTONIC SERIES OF XINHUA Sb-Au ORE DEPOSIT,CENTRAL HUNAN PROVINCE AND ITS PROSPECTING PREDICTION

There exist two metallotectonic series at the Xinhua Sb -Au ore deposit,c entral Hunan province.One was controlled by a left-lateral strike-slip brittle-ductile shear zone in Sinian system,formed in Cale-donian orogeny,and called as strike-slip-type metallotectonic series,the other was controlled by a downglide brittle-ductile shear zone in the Wu qiangxi Formation of the Banxi Group,formed in Xuefeng orogeny,and called as extensional-type metallo tectonic series.the known No.ⅠandⅢore-veins in the strike-slip shear zone belong to D-type main tensile-s hear veins and R-type tensile bridge-veins respectively.The predicted No.ⅣandⅤore-veins,being parallel with No.Ⅰ,are D-type tensile-shear vein,and the predicted No.Ⅵore-vein,being parallel to No.Ⅲ,is R-type tensile bridge-vein.The predicted No.Ⅶore-vein,bedded gold-bearing quartz vein which had b een seen at local sites before,was controlled by the downglide shear zone,in which it is likely to exist th e other ore-veins in parallel with No .Ⅵore-vein,similar to the structural genesis of the bedded ore-veins at the Woxi W-Sb -Au ore deposit.

WANG Jin-cao~(1,2),WANG Rong-rong~1,ZHOU Yao~1,WAN Fang-liang~1,CHEN Bin-bin~1(1.Department of Resources and Environmental Engineering,Guilin University of Technology,Guilin 541004,China;2.Key Laboratory of Marginal Sea Geology,Chinese Academy of Sciences,Guangzhou 510640,China);Regularity and geological significance for lateral trending of orebodies[J];Journal of Guilin University of Technology;2006-03